|Publication number||US7577331 B2|
|Application number||US 10/553,521|
|Publication date||Aug 18, 2009|
|Filing date||Mar 26, 2004|
|Priority date||Apr 16, 2003|
|Also published as||DE10317620A1, DE10317620B4, DE502004005653D1, EP1613993A1, EP1613993B1, US8285105, US20070154158, US20090257727, WO2004092797A1|
|Publication number||10553521, 553521, PCT/2004/3232, PCT/EP/2004/003232, PCT/EP/2004/03232, PCT/EP/4/003232, PCT/EP/4/03232, PCT/EP2004/003232, PCT/EP2004/03232, PCT/EP2004003232, PCT/EP200403232, PCT/EP4/003232, PCT/EP4/03232, PCT/EP4003232, PCT/EP403232, US 7577331 B2, US 7577331B2, US-B2-7577331, US7577331 B2, US7577331B2|
|Inventors||Steffen Laurisch, Klaus Klein, Hans-Peter Sandeck|
|Original Assignee||Adc Gmbh|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (19), Referenced by (36), Classifications (11), Legal Events (7)|
|External Links: USPTO, USPTO Assignment, Espacenet|
The invention relates to a glass-fiber coupler module as claimed in the preamble of patent claim 1.
It is increasingly common to wish to use glass-fiber distribution frame inserts with monitoring in glass-fiber distribution frames. The units referred to as coupler modules or monitoring modules are used in 19″ mounting racks and can be combined with standard plug modules.
In this regard, it is known for the glass-fiber coupler module to comprise a coupler by means of which the signals of at least one glass fiber are split between at least two outgoing glass fibers, one outgoing glass fiber being used for monitoring purposes. Further, the known glass-fiber coupler modules comprise a first and second group of couplings, the second group of couplings being arranged on the front panel. Plugs coming from the rear of the glass-fiber coupler module are accommodated by the first group of couplings and passed into the coupler via plugs inserted on the opposite side of the coupling. The glass fibers with a plug then run from the coupler to the couplings in the second group. It is often sufficient to monitor only the TX glass fibers. The rear RX glass-fiber plugs are thus inserted directly into the coupling on the front panel. The TX glass-fiber plugs are, on the other hand, inserted into the couplings in the first group and passed via the coupler to the second group of couplings. Owing to the fact that in this manner only half the glass fibers need to be passed to the coupler, the minimum bending radii do not present any problems. One disadvantage of the known glass-fiber coupler module is the maintenance problems associated with it. In the case of glass-fiber coupler modules, after a certain amount of time it is necessary to clean the plugs. Owing to the fact that there is only a small amount of space, it is extremely difficult to remove the plugs inserted in the first and second group of couplings within the housing without the use of a tool. Furthermore, it is nearly impossible to withdraw a plug without touching the adjacent glass fibers and thus influencing their transmission characteristics.
The invention is therefore based on the technical problem of providing a maintenance-friendly glass-fiber coupler module.
For this purpose, the first group of couplings is arranged on a mounting panel which is arranged on the cassette mount such that it can pivot. This makes it possible for the mounting panel to be pivoted up for maintenance purposes such that the couplings and thus the plugs inserted into the couplings are located on another plane. This makes the plugs in both the first and the second group of couplings freely accessible such that they can be withdrawn, cleaned and reinserted without the need for any tools. The mounting panel can in this case generally be regarded as a suitable mounting body.
In one preferred embodiment, each patch cable coming in from the rear is assigned a coupling in the first group, the couplings preferably all being arranged in a row. The patch cables coming in from the rear of the glass-fiber coupler module are thus simply and easily accessible from the rear, as opposed to the connected-through patch cables of the prior art which are sometimes inserted directly into the couplings in the second group of couplings.
In a further preferred embodiment, all of the couplings in the second group are arranged in a row.
In a further preferred embodiment, elements for accommodating a spare working length of glass fibers are arranged beneath the mounting panel. The spare working lengths make it possible for the plugs to be withdrawn and moved a certain distance away, which considerably simplifies maintenance work.
In a further preferred embodiment, at least one direction-changing element is arranged beneath the mounting panel. This ensures that the glass fibers can be passed into the coupler located below, whilst maintaining the minimum bending radii.
In a further preferred embodiment, the direction-changing element is in the form of an inner limiter. This ensures that when the plugs are withdrawn, the glass fiber, withdrawn from the store containing the spare working length, is not bent with less than the minimum bending radius in the store itself.
In a further preferred embodiment, the inner limiter is provided with at least one retainer. The retainer prevents, in particular, the glass fiber from curling upward when it is pulled and thus from being able to be drawn together above the inner limiter, such that its bending radius is not less than the minimum.
In a further preferred embodiment, cable ducts are arranged on the sides of the mounting panel. The glass fibers can be passed back through these cable ducts from the first group of couplings and into the store region arranged beneath the mounting panel whilst maintaining the minimum bending radii. The glass fibers may likewise be passed back via the cable ducts from the store region or the coupler and be inserted, using plugs, into the couplings in the second group of couplings.
In a further preferred embodiment, the width of the mounting panel with cable ducts is less than or equal to the width of the cassette mount. This makes it possible to use the glass-fiber coupler module according to the invention in standard 19″ inserts. The additional cable ducts thus do not increase the overall width of the glass-fiber coupler module, rather the width of the cassette mount which is available anyway is used for routing the glass fibers.
In a further preferred embodiment, a connection part in the form of a panel is arranged between the cable ducts. The connection part on the one hand protects the glass fibers and holds them down and, on the other hand, can be used as a label, for example.
In a further preferred embodiment, the mounting panel to the rear of the cassette panel is provided with V-shaped extensions bent downwards. The V-shaped extensions separate the passed-back glass fibers from the plugs arranged above them in the first group of couplings.
The invention is explained in more detail below with reference to a preferred exemplary embodiment. In the figures:
A second group of twelve couplings 9 is arranged on the front panel 3. The cassette mount 2 has a cutout 10 from which a retainer 11 is bent. Before the specific configuration of the glass-fiber coupler module 1 is explained in more detail, the connection of the glass fibers that can be produced in this way will be explained in more detail with reference to
Eight glass fibers with plugs enter from the rear of the glass-fiber coupler module. In this case, each subscriber is assigned two glass fibers: one for the incoming (RX) and one for the outgoing (TX) signals. These glass-fiber plugs (not shown) are inserted from the rear of the glass-fiber coupler module into the couplings 8. In order to provide monitoring, i.e. monitoring of the glass-fiber connection, the TX glass fibers are passed from the opposite side of the couplings 8 via glass fibers with plugs to the coupler 4. The TX signals are split in the coupler 4 by means of a splitter 12, for example 10% of the light power being coupled into a glass fiber for monitoring purposes. Four incoming glass fibers are thus split up into eight outgoing glass fibers in the coupler 4. If, as shown, no monitoring of the RX glass fibers is provided, these RX glass fibers can be passed via corresponding patch cables from the couplings 8 directly to the couplings 9. The monitoring signals M can then be tapped off by means of plugs inserted from the front of the front panel 3, and can be fed to a monitoring unit. In order to make it easier for the fitter, the individual glass fibers can be identified using colored markings 13. Of course, other types of splitting in the coupler 4 are also possible, for example splitting into three glass fibers. Furthermore, the RX glass fibers may also be included in the monitoring. Likewise, any number of RX and TX glass fibers may be used. Furthermore, a bidirectional glass-fiber connection may also be used.
As can further be seen in
As can be seen from
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|U.S. Classification||385/135, 385/137, 385/134, 385/136|
|International Classification||G02B6/00, G02B6/44, G02B6/38|
|Cooperative Classification||G02B6/4453, G02B6/3879, G02B6/3823|
|Oct 10, 2006||AS||Assignment|
Owner name: ADC GMBH, GERMANY
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LAURISCH, STEFFEN;KLEIN, KLAUS;SANDECK, HANS-PETER;REEL/FRAME:018380/0653;SIGNING DATES FROM 20051202 TO 20060106
|Mar 26, 2013||FPAY||Fee payment|
Year of fee payment: 4
|Mar 26, 2013||SULP||Surcharge for late payment|
|Jul 6, 2015||AS||Assignment|
Owner name: TYCO ELECTRONICS SERVICES GMBH, SWITZERLAND
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ADC GMBH;REEL/FRAME:036064/0578
Effective date: 20150410
|Oct 26, 2015||AS||Assignment|
Owner name: COMMSCOPE EMEA LIMITED, IRELAND
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:TYCO ELECTRONICS SERVICES GMBH;REEL/FRAME:036956/0001
Effective date: 20150828
|Oct 29, 2015||AS||Assignment|
Owner name: COMMSCOPE TECHNOLOGIES LLC, NORTH CAROLINA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:COMMSCOPE EMEA LIMITED;REEL/FRAME:037012/0001
Effective date: 20150828
|Jan 13, 2016||AS||Assignment|
Owner name: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT, IL
Free format text: PATENT SECURITY AGREEMENT (ABL);ASSIGNOR:COMMSCOPE TECHNOLOGIES LLC;REEL/FRAME:037514/0196
Effective date: 20151220
Owner name: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT, IL
Free format text: PATENT SECURITY AGREEMENT (TERM);ASSIGNOR:COMMSCOPE TECHNOLOGIES LLC;REEL/FRAME:037513/0709
Effective date: 20151220